If tax dodging in Italy was halved, the economy would grow by 3.1 percent, creating an extra 335,000 jobs, Italy's main business association Confindustria said on Wednesday.
Tax evasion this year alone will drain a massive 122.2 billion euros from Italy's gross domestic product (GDP), Confindustria's research unit said in a forecast.
"Dodging taxes, pension and social security contributions stifles Italy's development," the forecast warned.
"It militates against fairness and solidarity, distorts competition and worsens relations between citizens and the state," it said.